Scroll:Life mathematics >> profit and loss >> saq (4298)


Written Instructions:

For each Multiple Choice Question (MCQ), four options are given. One of them is the correct answer. Make your choice (1,2,3 or 4). Write your answers in the brackets provided..

For each Short Answer Question(SAQ) and Long Answer Question(LAQ), write your answers in the blanks provided.

Leave your answers in the simplest form or correct to two decimal places.



 

1)  

 If 2258  sq.m. of land can be tilled by 17 workers in 8 days , how many workers are neede to till 5932 sq.m. of land in 12 days.

workers


Answer:_______________




2)  

 If 2037  sq.m. of land can be tilled by 20 workers in 10 days , how many workers are neede to till 4600 sq.m. of land in 13 days.

workers


Answer:_______________




3)  

 If 2840  sq.m. of land can be tilled by 16 workers in 10 days , how many workers are neede to till 4784 sq.m. of land in 12 days.

workers


Answer:_______________




4)  

 If 2193  sq.m. of land can be tilled by 16 workers in 9 days , how many workers are neede to till 5089 sq.m. of land in 13 days.

workers


Answer:_______________




5)  

 If 2410  sq.m. of land can be tilled by 17 workers in 9 days , how many workers are neede to till 5018 sq.m. of land in 14 days.

workers


Answer:_______________




6)  

 If 2888  sq.m. of land can be tilled by 20 workers in 10 days , how many workers are neede to till 4905 sq.m. of land in 14 days.

workers


Answer:_______________




7)  

 If 2868  sq.m. of land can be tilled by 17 workers in 7 days , how many workers are neede to till 5587 sq.m. of land in 12 days.

workers


Answer:_______________




8)  

 If 2733  sq.m. of land can be tilled by 18 workers in 5 days , how many workers are neede to till 4551 sq.m. of land in 14 days.

workers


Answer:_______________




9)  

 If 2114  sq.m. of land can be tilled by 19 workers in 10 days , how many workers are neede to till 4759 sq.m. of land in 15 days.

workers


Answer:_______________




10)  

 If 2913  sq.m. of land can be tilled by 20 workers in 5 days , how many workers are neede to till 5373 sq.m. of land in 15 days.

workers


Answer:_______________




 

1)  

 If 2258  sq.m. of land can be tilled by 17 workers in 8 days , how many workers are neede to till 5932 sq.m. of land in 12 days.

Answer: 30 workers


SOLUTION 1 :

Soln:

Area of LandNo of workersNo of days
     2258       17   8
     5932          12

Step:1

       Consider area of land & workers.

       As the area o land increases from 2258 to 5932.The No of workers also increases.

       It is in direct variation.

       The multiplying factor = 59322258

Step:2

       Consider the area of land & days.

       As the No of days increases  from 8 to 12 & the No of workers decreases .

       It is in inverse variation.

       The multiplying factor  =   812

                                       x   =     59322258 x 812 x 17

                                            =    2.62710363153 x 0.666666666667 x 17

                                             =  30 workers



2)  

 If 2037  sq.m. of land can be tilled by 20 workers in 10 days , how many workers are neede to till 4600 sq.m. of land in 13 days.

Answer: 35 workers


SOLUTION 1 :

Soln:

Area of LandNo of workersNo of days
     2037       20   10
     4600          13

Step:1

       Consider area of land & workers.

       As the area o land increases from 2037 to 4600.The No of workers also increases.

       It is in direct variation.

       The multiplying factor = 46002037

Step:2

       Consider the area of land & days.

       As the No of days increases  from 10 to 13 & the No of workers decreases .

       It is in inverse variation.

       The multiplying factor  =   1013

                                       x   =     46002037 x 1013 x 20

                                            =    2.25822287678 x 0.769230769231 x 20

                                             =  35 workers



3)  

 If 2840  sq.m. of land can be tilled by 16 workers in 10 days , how many workers are neede to till 4784 sq.m. of land in 12 days.

Answer: 22 workers


SOLUTION 1 :

Soln:

Area of LandNo of workersNo of days
     2840       16   10
     4784          12

Step:1

       Consider area of land & workers.

       As the area o land increases from 2840 to 4784.The No of workers also increases.

       It is in direct variation.

       The multiplying factor = 47842840

Step:2

       Consider the area of land & days.

       As the No of days increases  from 10 to 12 & the No of workers decreases .

       It is in inverse variation.

       The multiplying factor  =   1012

                                       x   =     47842840 x 1012 x 16

                                            =    1.68450704225 x 0.833333333333 x 16

                                             =  22 workers



4)  

 If 2193  sq.m. of land can be tilled by 16 workers in 9 days , how many workers are neede to till 5089 sq.m. of land in 13 days.

Answer: 26 workers


SOLUTION 1 :

Soln:

Area of LandNo of workersNo of days
     2193       16   9
     5089          13

Step:1

       Consider area of land & workers.

       As the area o land increases from 2193 to 5089.The No of workers also increases.

       It is in direct variation.

       The multiplying factor = 50892193

Step:2

       Consider the area of land & days.

       As the No of days increases  from 9 to 13 & the No of workers decreases .

       It is in inverse variation.

       The multiplying factor  =   913

                                       x   =     50892193 x 913 x 16

                                            =    2.32056543548 x 0.692307692308 x 16

                                             =  26 workers



5)  

 If 2410  sq.m. of land can be tilled by 17 workers in 9 days , how many workers are neede to till 5018 sq.m. of land in 14 days.

Answer: 23 workers


SOLUTION 1 :

Soln:

Area of LandNo of workersNo of days
     2410       17   9
     5018          14

Step:1

       Consider area of land & workers.

       As the area o land increases from 2410 to 5018.The No of workers also increases.

       It is in direct variation.

       The multiplying factor = 50182410

Step:2

       Consider the area of land & days.

       As the No of days increases  from 9 to 14 & the No of workers decreases .

       It is in inverse variation.

       The multiplying factor  =   914

                                       x   =     50182410 x 914 x 17

                                            =    2.08215767635 x 0.642857142857 x 17

                                             =  23 workers



6)  

 If 2888  sq.m. of land can be tilled by 20 workers in 10 days , how many workers are neede to till 4905 sq.m. of land in 14 days.

Answer: 24 workers


SOLUTION 1 :

Soln:

Area of LandNo of workersNo of days
     2888       20   10
     4905          14

Step:1

       Consider area of land & workers.

       As the area o land increases from 2888 to 4905.The No of workers also increases.

       It is in direct variation.

       The multiplying factor = 49052888

Step:2

       Consider the area of land & days.

       As the No of days increases  from 10 to 14 & the No of workers decreases .

       It is in inverse variation.

       The multiplying factor  =   1014

                                       x   =     49052888 x 1014 x 20

                                            =    1.69840720222 x 0.714285714286 x 20

                                             =  24 workers



7)  

 If 2868  sq.m. of land can be tilled by 17 workers in 7 days , how many workers are neede to till 5587 sq.m. of land in 12 days.

Answer: 19 workers


SOLUTION 1 :

Soln:

Area of LandNo of workersNo of days
     2868       17   7
     5587          12

Step:1

       Consider area of land & workers.

       As the area o land increases from 2868 to 5587.The No of workers also increases.

       It is in direct variation.

       The multiplying factor = 55872868

Step:2

       Consider the area of land & days.

       As the No of days increases  from 7 to 12 & the No of workers decreases .

       It is in inverse variation.

       The multiplying factor  =   712

                                       x   =     55872868 x 712 x 17

                                            =    1.9480474198 x 0.583333333333 x 17

                                             =  19 workers



8)  

 If 2733  sq.m. of land can be tilled by 18 workers in 5 days , how many workers are neede to till 4551 sq.m. of land in 14 days.

Answer: 11 workers


SOLUTION 1 :

Soln:

Area of LandNo of workersNo of days
     2733       18   5
     4551          14

Step:1

       Consider area of land & workers.

       As the area o land increases from 2733 to 4551.The No of workers also increases.

       It is in direct variation.

       The multiplying factor = 45512733

Step:2

       Consider the area of land & days.

       As the No of days increases  from 5 to 14 & the No of workers decreases .

       It is in inverse variation.

       The multiplying factor  =   514

                                       x   =     45512733 x 514 x 18

                                            =    1.66520307355 x 0.357142857143 x 18

                                             =  11 workers



9)  

 If 2114  sq.m. of land can be tilled by 19 workers in 10 days , how many workers are neede to till 4759 sq.m. of land in 15 days.

Answer: 29 workers


SOLUTION 1 :

Soln:

Area of LandNo of workersNo of days
     2114       19   10
     4759          15

Step:1

       Consider area of land & workers.

       As the area o land increases from 2114 to 4759.The No of workers also increases.

       It is in direct variation.

       The multiplying factor = 47592114

Step:2

       Consider the area of land & days.

       As the No of days increases  from 10 to 15 & the No of workers decreases .

       It is in inverse variation.

       The multiplying factor  =   1015

                                       x   =     47592114 x 1015 x 19

                                            =    2.25118259224 x 0.666666666667 x 19

                                             =  29 workers



10)  

 If 2913  sq.m. of land can be tilled by 20 workers in 5 days , how many workers are neede to till 5373 sq.m. of land in 15 days.

Answer: 12 workers


SOLUTION 1 :

Soln:

Area of LandNo of workersNo of days
     2913       20   5
     5373          15

Step:1

       Consider area of land & workers.

       As the area o land increases from 2913 to 5373.The No of workers also increases.

       It is in direct variation.

       The multiplying factor = 53732913

Step:2

       Consider the area of land & days.

       As the No of days increases  from 5 to 15 & the No of workers decreases .

       It is in inverse variation.

       The multiplying factor  =   515

                                       x   =     53732913 x 515 x 20

                                            =    1.84449021627 x 0.333333333333 x 20

                                             =  12 workers